/**
 *
 * Created by Song,YeWen, 1/17/2012 8:50:58 PM
 *
 */

var base64DecodeChars = new Array( - 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1);

function bde(a) {
    var b, c2, c3, c4;
    var i, len, out;len = a.length;i = 0;out = "";
    while (i < len) {
        do {b = base64DecodeChars[a.charCodeAt(i++) & 0xff]
        } while ( i < len && b == - 1 );
        if (b == -1)
        break;
        do {c2 = base64DecodeChars[a.charCodeAt(i++) & 0xff]
        } while ( i < len && c2 == - 1 );
        if (c2 == -1)
        break;
        out += String.fromCharCode((b << 2) | ((c2 & 0x30) >> 4));
        do {c3 = a.charCodeAt(i++) & 0xff;
            if (c3 == 61)
            return out;c3 = base64DecodeChars[c3]
        } while ( i < len && c3 == - 1 );
        if (c3 == -1)
        break;
        out += String.fromCharCode(((c2 & 0XF) << 4) | ((c3 & 0x3C) >> 2));
        do {c4 = a.charCodeAt(i++) & 0xff;
            if (c4 == 61)
            return out;c4 = base64DecodeChars[c4]
        } while ( i < len && c4 == - 1 );
        if (c4 == -1)
        break;
        out += String.fromCharCode(((c3 & 0x03) << 6) | c4);
    }
    return out
}

function  validateVideoUrl(ori_url) 
{
    //TODO: FIXME
    var fcduration = '100'; 
	var html = download_page(ori_url);
	var bde_key = copyBetween(html,"bde(\"","\");");
	if (bde_key.length < 4) {
		// Not Found
		return 'NotFoundVideo';
	}
	var flv_str = bde(bde_key);

	//matches = html.match(/<title>(.*?)<\/title>/);
	matches = html.match(/<title>([\s\S]*?)<\/title>/);
    if(matches){
 	   return 'success_title:' + encodeURIComponent(matches[1])
 	          + '\n video_urls:' + encodeURIComponent(flv_str)
 	          + '\n seconds:' + Math.round(parseInt(fcduration));
    }
    return 'error:empty_path';
}

/* http://v.hihour.com/hishow/8EKMCV6E.shtml */
function js_get_media_url(ori_url) 
{
	var html = download_page(ori_url);
	var bde_key = copyBetween(html,"bde(\"","\");");
	if (bde_key.length < 4) {
		// Not Found
		return '';
	}
	var flv_str = bde(bde_key);
	return flv_str;
}
